The Witches of Karres is a 4-book series with 4 primary works first released in 1966 with contributions by James H. Schmitz, Eric Flint, Dave Freer, and Mercedes Lackey.
1966 • 23 Readers • 379 pages • 3.7
2004 • 5 Readers • 320 pages • 3
2010 • 1 Reader • 431 pages
2020 • 1 Reader • 314 pages